Housing-captured component carrier for reducing fasteners

摘要

An electrical control module provides a plastic insert fitting inside a housing and compressed by assembly of the housing lid and base to be held securely therein. Elastic components on the plastic insert are compressed during the assembly provide a secure retention in the face of normal manufacturing tolerances. The plastic insert includes features for attaching electrical components such as electrical contactors, motor starters, disconnect switches, circuit breakers, and overload switches without conventional screw fasteners or the like through channels and elastic detents.

主权项

1. An electrical control module comprising:
a housing defining a contained volume held between an interfitting housing base and a housing lid, the housing base providing a first inwardly facing support surface surrounded by upstanding side walls opposing a second inwardly facing support surface on the housing lid when the housing base and housing lid are interfitting, the housing lid interfitting against upper edges of the upstanding side walls to be retained there by attachment elements; a polymeric insert receivable within the contained volume and providing mounting surfaces for electrical components selected from the group consisting of electrical contactors, motor starters, disconnect switches, circuit breakers, and overload switches, the polymeric insert providing multiple elastomeric elements; and wherein at least one of the housing base and housing lid have inwardly extending compression surfaces engaging the elastomeric elements when the housing base and housing lid are interfitting to compress the same and secure the polymeric insert within the housing.